Facility detail

TIERCON COMPONENTS INC

50 ENTERPRISE DR, VASSAR, MI, 48768

Parent company: TIERCON INDUSTRIES INC

Carcinogen — EPA classifications across all reporting years

Year-over-year total releases

Reported on-site TRI releases in pounds (lbs), grouped by reporting year.

Top chemical totals

The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.

Full release table

Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.

All values in pounds (lbs)
Year Certain glycol ethers n-Butyl alcohol Xylene (mixed isomers) Methyl isobutyl ketone Isopropyl alcohol (only persons who manufacture by the strong acid process are subject, no supplier notification) Total (lbs)
2001 7,731 — — — — 7,731
2000 14,887 — — — — 14,887
1999 4,457 — — — — 4,457
1998 23,067 — — — — 23,067
1997 24,336 — — — — 24,336
1996 21,550 — — — — 21,550
1995 19,682 — — — — 20,799
1994 12,517 — — — — 12,517
1993 7,324 3,383 3,601 — — 15,888
1992 12,615 6,342 3,663 6,951 6,027 42,411

▎ Facilities report to EPA's TRI once they manufacture, process, or use a listed chemical above set thresholds. Once that threshold is crossed, they must report actual releases regardless of size — so a small number reflects genuine low-level discharge, not a data error.